Signal to Noise Ratio
Parameters that increase signal to noise ratio (while keeping all other parameters constant) include:
- Increased magnetic field strength
- Use of surface coil
- Increased slice thickness
- Increased field-of-view
- Decreased matrix
- Increased TR
- Decreased TE
- Increased acquisitions
- Decreased bandwidth
Parameters that increase signal to noise ratio (while keeping all other parameters constant) include:
- Increased matrix
- Decreased slice thickness
- Decreased field of view
MRI imaging is a balance between spatial resolution and signal to noise ratio, with acquisition time limiting both.